package com.itheima.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.common.CustomException;
import com.itheima.entity.Category;
import com.itheima.entity.Dish;
import com.itheima.entity.Setmeal;
import com.itheima.mapper.CategoryMapper;
import com.itheima.service.CategoryService;
import com.itheima.service.DishService;
import com.itheima.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {
    @Autowired
    private DishService dishService;
    @Autowired
    private SetmealService setmealService;
    @Override
    public void remove(Long id) {
        LambdaQueryWrapper<Dish> dishqueryWrapper = new LambdaQueryWrapper();
        dishqueryWrapper.eq(Dish::getCategoryId,id);
        int count1 = dishService.count(dishqueryWrapper);
        if (count1 > 0) {
            throw new CustomException("当前分类下有菜品信息，不能删除！");
        }
        LambdaQueryWrapper<Setmeal> setmealqueryWrapper = new LambdaQueryWrapper();
        setmealqueryWrapper.eq(Setmeal::getCategoryId,id);
        int count2 = setmealService.count(setmealqueryWrapper);
        if (count2 > 0) {
            throw new CustomException("当前分类下有套餐信息，不能删除！");
        }
        super.removeById(id);

    }
}
